package threading;

class MyThread extends Thread {
    @Override
    public void run() {
        while (true) {
            System.out.println("hello ,t");
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}
public class ThreadDemo1 {
    public static void main(String[] args) throws InterruptedException {
        Thread t = new MyThread();
        //start 会创建新的线程
        //run 不会创建新的线程.run 是在 main 线程中执行的~
        t.run();
        t.start();
        while(true) {
            System.out.println("hello,main");
            Thread.sleep(1000);


        }
    }
}
